Would it be worth while adding a little meat to the message? I've seen
quite a few people asking if there is a way to "turn on" this feture.
Adding something ablong the lines of:

This portion of AbiWord is not yet compleate. If you would like to help
the project out, edit the dummy.c around line ###, or you can wait for one
of the developer to get to it. This function is done and working, we're
just waiting on the dialog.
-- Developers

Or something along those lines. This mite make things a little more
understandible to the gerneral user.